These backing boards along with comic bags are the most common way to protect and preserve your comic books.
They are full 24 point one side coated board, solid bleached sulfate, buffered with 3% calcium carbonate and precision cut to size. They are completely acid free and independent lab tested.
Slip your comic into the bag with a backer board behind it (shiny side toward the comic), fold the flap over and secure with a couple strips of tape.
Size 7" x 10½". 100 boards per pack. Price is per pack.
Note: The weight for these is a dimensional weight rather than the actual weight. Recent changes in the cost to ship bulky items results in higher priority mail shipping costs for these items.